A connector housing is provided for an electronic/electrical device, which may include a printed circuit board. The connector housing includes a header connector secured to an enclosure. The header connector includes a plastic mounting block defining a plurality of slots. A plurality of contacts is at least partially disposed in the slots of the mounting block, respectively. The contacts each have a first section and a second section. The first section includes a connector end and the second section includes a plurality of retention tabs and a tail end for connection to the electronic/electrical device. The retention tabs extend in the lateral direction and engage the mounting block to help secure the contacts to the mounting block. A keeper is connected to the mounting block such that the tail ends of the contacts protrude from an outer surface of the keeper.